JPS569021A - Screw working method of thin-walled pipe - Google Patents
Screw working method of thin-walled pipeInfo
- Publication number
- JPS569021A JPS569021A JP8565079A JP8565079A JPS569021A JP S569021 A JPS569021 A JP S569021A JP 8565079 A JP8565079 A JP 8565079A JP 8565079 A JP8565079 A JP 8565079A JP S569021 A JPS569021 A JP S569021A
- Authority
- JP
- Japan
- Prior art keywords
- die
- dies
- pipe
- thin
- walled pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Forging (AREA)
Abstract
PURPOSE: To work the screws having sufficient practicable strength on a thin-walled pipe easily and highly accurately by fitting a mandrel die into the thin-walled pipe and revolving these under pressure between plural circular dies.
CONSTITUTION: With circular dies 10, 11 and a mandrel die 12 being held spaced, a thin-walled pipe P being the work is fitted onto the die 12. The outside diameter of the die 12 is made approximately the same as the inside diameter of the pipe P. In this state, the dies 11W12 are rotated and the movable die 11 is moved to the die 12 side to push the die 12 and press it to the stationary die 10. As a result, the pipe P revolves in the same direction as that of the die 12 by receiving the rotating force of the die 12 from the inner side and the rotating forces of the dies 10, 11 from the outer side. The peripheral wall portions of the pipe P press-contacted with the dies 10W12 are pressed by the die screw parts 10a, 11a from the outer side and the screw parts 12a being reverse in crest and through from those of said parts from the inner side, thus it plastically deforms along the screw shape, whereby screws S1, S2 are formed on the inside and outside surfaces.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8565079A JPS569021A (en) | 1979-07-05 | 1979-07-05 | Screw working method of thin-walled pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8565079A JPS569021A (en) | 1979-07-05 | 1979-07-05 | Screw working method of thin-walled pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS569021A true JPS569021A (en) | 1981-01-29 |
Family
ID=13864693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8565079A Pending JPS569021A (en) | 1979-07-05 | 1979-07-05 | Screw working method of thin-walled pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS569021A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62207517A (en) * | 1986-03-07 | 1987-09-11 | Asahi Chem Ind Co Ltd | Method for forming external and internal thread in cylindrical blank |
JP5944570B1 (en) * | 2015-12-16 | 2016-07-05 | 侑 堀田 | Thin pipe connection method and pipe screw forming apparatus |
-
1979
- 1979-07-05 JP JP8565079A patent/JPS569021A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62207517A (en) * | 1986-03-07 | 1987-09-11 | Asahi Chem Ind Co Ltd | Method for forming external and internal thread in cylindrical blank |
JP5944570B1 (en) * | 2015-12-16 | 2016-07-05 | 侑 堀田 | Thin pipe connection method and pipe screw forming apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS569021A (en) | Screw working method of thin-walled pipe | |
JPS5530357A (en) | Production of v-pulley | |
ATE116166T1 (en) | INDIRECT EXTRUSION METHOD AND DEVICE THEREOF. | |
IE39568B1 (en) | Shaping thermoplastic pipes | |
RU2095175C1 (en) | Method of making convex and concave lands on tubular blanks and installation for performing the same | |
JPS56128629A (en) | End part working method for pipe | |
JPS5636356A (en) | Method of hole-enlarging forging | |
JPS57187135A (en) | Rolling device | |
JPS57156852A (en) | Method for working metallic pipe whose pipe diameter-to-thickness ratio is small, to tapered shape by swaging machine, and stiffening metal fitting device | |
JPS55128315A (en) | Cold and warm pressure welding and extruding method | |
JPS5639131A (en) | Manufacture of coaxial reducing pipe | |
JPS57112914A (en) | Shaping device for outer and inner surface of metallic pipe | |
JPS57112911A (en) | Working device for outer and inner surface of metallic pipe | |
JPS5440270A (en) | Upsetting method for end portion of metallic pipe | |
JPS55141348A (en) | Production of product having tooth profile and its apparatus | |
JPS55114430A (en) | Method for drawing pipe to square form and forging machine used for this | |
JPS579537A (en) | Production of joint tube | |
DE58907213D1 (en) | Process for cold pressing a conical external thread. | |
JPS55114429A (en) | Method for drawing pipe to square form and swaging machine used for this | |
JPS5437058A (en) | Method of producting metal pipe with plurality of grooves and projections | |
SU942855A1 (en) | Deforming tool for thermofriction forming | |
JPS558374A (en) | Spindle in swaging machine | |
JPS57184515A (en) | Straightening machine of pipe material | |
JPS5797834A (en) | Manufacture of nozzle body | |
JPS5639123A (en) | Bending method for pipe utilizing ultrasonic wave |